J & A Construction
Based in Castro Valley
3 kitchen, 3 bath, 2 additions · median permit value $370k · latest: kitchen, Sep 2026 (SF permits)
3 residential permits · licensed 14 yrs
Active · B · #974834 · Bond ✓ · Workers' comp ✓ · Verify on CSLB
General contractor Castro Valley, CA Corporation
Bingo Builders
Active License #1110685 B General Building · Castro Valley, CA
- CSLB license age
- 3 yrs
- Expires
- Sep 30, 2027
- Bond
- $25,000 bond
- The North River Insurance Company
- Workers' comp
- State Compensation Insurance Fund
CSLB records dated Oct 16, 2026 checked Oct 18, 2026 Verify live on CSLB
License record
- Status
- Active CSLB status code: CLEAR
- Class
- B · General Building
- Business type
- Corporation
- Issued
- Sep 28, 2023 CSLB license age: 3 yrs as of the file date
- Contractor bond
- $25,000 bond The North River Insurance Company, since Jul 1, 2023
- Workers' comp
- State Compensation Insurance Fund Jul 21, 2023 to Jul 21, 2027 · WC file dated Oct 17, 2026
- CSLB last updated this record
- Feb 5, 2026
Personnel of record
- KWOK Leung Chan Responsible Managing Officer/Chief Executive Officer/President
As listed in CSLB's personnel file dated Oct 17, 2026. Personnel of record qualify the license. The file does not show who owns the business.
What the permit record shows
We have permit records for San Francisco and San Jose only. Other Bay Area cities don't publish contractor names in a form we can read, so an empty list here says nothing about work elsewhere.
San Francisco permits (matched by license number)
27permits in 24 months
- Residential
- 26
- Commercial
- 1
- Latest issued
- Sep 1, 2026
- Median permit value
- $21,000
Permit descriptions that mention: Bathroom remodel (15), Kitchen remodel (7), Home addition (1)
Permits by declared value (27 with a value)
- Under $50k 18
- $50k to $250k 6
- $250k to $1M 3
- Over $1M 0
Latest permits (public permit numbers)
- Home addition · $469,000 · Sep 1, 2026 Permit #202603046902
- Over-the-counter alterations permit · Jun 12, 2026 Permit #202605272024
- Over-the-counter alterations permit · $52,000 · May 6, 2026 Permit #202605040595
- Over-the-counter alterations permit · $8,000 · May 5, 2026 Permit #202604229856
- Kitchen remodel · $30,000 · May 1, 2026 Permit #202605010555
- Over-the-counter alterations permit · $11,000 · Mar 25, 2026 Permit #202603258256
- Kitchen remodel · $22,000 · Mar 23, 2026 Permit #202603238131
- Bathroom remodel · $28,000 · Mar 23, 2026 Permit #202603177765
- Bathroom remodel · $3,000 · Mar 17, 2026 Permit #202603177734
- Over-the-counter alterations permit · $3,000 · Jan 29, 2026 Permit #202601294866
Source: DataSF building permits, checked Oct 18, 2026
Complaints and legal actions
CSLB lists complaint and legal-action disclosures on the license's page.
Check complaints on CSLBBefore you sign
- Down payment. On a home improvement contract it can't exceed $1,000 or 10% of the price, whichever is less. B&P 7159.5
- What this class covers. A B contractor's prime contract needs 2 or more unrelated trades (B&P 7057). B covers additions and structural work; a B-2 doesn't (CSLB class B-2).
Other licensed general contractors near Castro Valley
Ranked by the published scoring rules on the methodology page.
Luis W Yan
Based in Castro Valley
2 bath, 1 kitchen · median permit value $87k · latest: bath, Oct 2025 (SF permits)
2 residential permits · licensed 16 yrs
Active · B · #939755 · Bond ✓ · Workers' comp ✓ · Verify on CSLB
Hamilton Exteriors
Legal name: ABR Quality Resources Inc · Based in Castro Valley
1 permit · median permit value $12k (SF permits)
1 residential permit · licensed 5 yrs
Active · B · #1078806 · Bond ✓ · Workers' comp ✓ · Verify on CSLB
Questions about Bingo Builders
Is Bingo Builders licensed?
Yes. CSLB lists license #1110685 (B, General Building) as active in its file dated Oct 16, 2026. It was first issued Sep 28, 2023 and expires Sep 30, 2027. Check the live record on CSLB before you sign.
What is the CSLB license number for Bingo Builders?
CSLB lists Bingo Builders under license #1110685, class B, in Castro Valley, CA.
Is Bingo Builders bonded and insured?
CSLB shows a $25,000 contractor bond with The North River Insurance Company and workers' comp coverage through State Compensation Insurance Fund (policy to Jul 21, 2027). Those are the bond and workers' comp records in CSLB's file dated Oct 16, 2026. Ask for its certificate of general liability insurance.
Who owns Bingo Builders?
CSLB lists KWOK Leung Chan (Responsible Managing Officer/Chief Executive Officer/President) as personnel of record. That file names the people who qualify the license. It does not show who owns the business. CSLB lists the business type as corporation.
Where can I see CSLB complaint and legal-action records for #1110685?
On license #1110685's page on CSLB. It lists any complaint disclosures and legal actions CSLB publishes for the license.
Where can I read reviews of Bingo Builders?
We don't host reviews. The links under the license details search for Bingo Builders in Castro Valley on Yelp, Google, Houzz, BBB, Thumbtack and Angi, so you read them at the source.
Confirm or correct this page
For the business owner. Everything above comes from CSLB and city permit files. Send a correction and we check it against the source.